Time Variation in the Radio Continuum Emission Associated with the Surroundings of the Nucleus of the Planetary Nebula KjPn 8
We present new, high sensitivity, Very Large Array (VLA) continuum observationsof the core of KjPn 8 made with arcsecond angular resolution. Theseobservations were compared with similar observations taken 5.5 years earlier, inorder to search for variations that seemed to be present in previous obser...
| Autores: | , , |
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| Tipo de recurso: | artículo |
| Estado: | Versión publicada |
| Fecha de publicación: | 2002 |
| País: | México |
| Institución: | Universidad Nacional Autónoma de México |
| Repositorio: | Redalyc-UNAM |
| OAI Identifier: | oai:redalyc.org:57138215 |
| Acceso en línea: | https://www.redalyc.org/articulo.oa?id=57138215 |
| Access Level: | acceso abierto |
| Palabra clave: | Física, Astronomía y Matemáticas ISM: RADIO SOURCES RADIO CONTINUUM: ISM PLANETARY NEBULAE: INDIVIDUAL (KjPn 8) |
| Sumario: | We present new, high sensitivity, Very Large Array (VLA) continuum observationsof the core of KjPn 8 made with arcsecond angular resolution. Theseobservations were compared with similar observations taken 5.5 years earlier, inorder to search for variations that seemed to be present in previous observations.Our comparison indicates that the emission associated with the surroundings of thestellar nucleus decreased by 40% over this period. We tentatively attribute thisdecrease to variations in the ejection of gas from the central star. |
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